Jointing machine



F. H. PERRY JOINTING MACHINE April 21, 1925.

I QM R NA w F. H. PERRY JOINTING' MACHINE April 21, 1925.

Original Filed Nov. 8, 19 16 2 Sheets-Sheet 2 Patented Apr. 21, 1925 UNITED :STATES PATENT FREDERIGKH. PERRY, or BEVERLY, rlrasseonusntrrs. nssrenonnmmnsnn ASSIGN- .MENTS, TO UNITED SHOE MACHINERY oonronnmon, on EATER-SON; NEW JERsnY,

A CORPORATION OF NEW JERSEY.

roma ne MACHINE.

. Application filed November 8, 1916, Serial No. 130,175. RenewegtJanuary 2,; was.

To all whom it mag concern,"

Be it known'that I, FREDERICK H. PERRY,

a citizen of the United States, residing at 'Ii ev'erif fli'rthe county of Essex and State of Massachusetts, have invented certain Improvements in Jointing Machines, of which the following" description, in CQDnection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several u es "This invention relates to trimming machines, and, in particular to machines used to perform the operation known as jointing in' the manufacture of shoes. This operationconsists in trimming the edge of the shank of a shoe from thepoint where the usual machine trimming operation is stopped to the heel breast. One type of machine used for the performance of this operation includes a knife arranged to move along the shank edge to raise a shaving, and asecond knife, moving substantially at right angles to the shank edge to detach the shaving, the two knives being so co-ordinated that they reach alternately the same extremepoint of movement. By the operation of this machine as heretofore constructed the shaving detached is cut up into smallpieces, a procedure which wastes power, dulls the detaching or chopping knife rapidly, and entails more or less injury to the shank edge in front of the heel breast, since a slight inaccuracy in the adjustment of the chopping knife will cause it to cut too deeply and make a series of scars along the shan It is a principal object of my invention to obviate these difilculties by controllingthe operation of the detaching means so that it will come into operative relation to the work only when desired. The power wasted in cutting the trimmed shaving into small pieces is thereby saved, the rapid drilling and consequent frequent grinding and wear of the chopping knife is avoided, and the extreme care in adjustment formerly required are made unnecessary since a single cut in the shank edge at the heel breast does 110B damage the appearance of t ho and s, not partic la y a jectionable. i i The control which I accomplish is auto,- m i and s eff ted ind pend nt y P 3 attention or effort on the part offltlieoperm tor. H In the machine described theispeciiication, the control of the this is effected by theshoe itself while 0 in themachine as the trimming linen; tality operates on it. Theoperatordoes not have to change position in anyway; and is able to devote his whole attention to holding and guiding the shoe. i V

A feature of my invention comprises me ns for t mmin th $91. "o a S e; an onti ou y dr ve mean l" reams the trimmed material arranged to be con trolled by the shoe so that it will be caused to operate on the shoe only when necessary to detach the shaving raised by the trimming means.

Another feature of my invention is a positively driven detaching means arranged to be controlled by' the shoe." The reliable operation of the detaching means and its operation only at the point where necessary to detach the trimmed shaving are thus assured. 7 .Another feature of the invention comprises means for trimming the sole 'of a shoe and means for detaching the trimmed material arranged to bemoved automatically into and out of its operative path. relative to the sole. In the machine illustrated the detaching means is arranged to vibrate in a plurality of ranges, and means controlled by theshoe is provided for shifting the detaching means to and from its effective range. The useless and frequently harmful'eifects of the detaching means on the shoe are thus avoided, and its operation exclusively at the desired point is secured without effort or disturbance of attention on the part of the operator. Another feature of the invention comprises driving mechanism for the detaching means relative to which the detaching means is automatically movable to and from operative relation to the work. I The change in relation does not, therefore, require to be effected. through any substantial interferprises a gage for engagement with the shoe and connections between the gage and a shifting mechanism for the detaching means whereby the mechanism is controlled to shift the detaching means from an inoperative to an operative range on displacement of the gage by the shoe, and whereby the detaching means is shifted back to the inoperative range when such gage is released. The detaching means is thus normally kept in inoperative relation, is automatically moved into operative relation when the shoe displaces the gage, and is restored automatically to inoperative relation when the gage is released.

Another feature of the invention comprises continuously driven mechanism arranged to cause the shifting means to move the detaching means repeatedly from one position to the other, and means controlled by the shoe for beginning each shifting operation and controlled otherwise to disconnect the power from the shifting means as each shift is completed. The power for moving the detaching means is thus supplied from the drive and the control requires no eiiort on the part of the operator.

These and other features of the invention comprising various combinations and arrangements of parts will be best understood and appreciated from the following description of a preferred embodiment thereof selected for purposes of illustration and shown in the accompanying drawings, in which Fig. 1 is a side elevation of the .head of the machine,

Fig. 2 is a front elevation,

Fig. 3 is a horizontal sectional view on the line 33 of Fig. 2,

Fig. 4 is a horizontal View partially in section on the linel4 of Fig. 1, and

Fig. 5 is a section on the line 5-5 of Fig. l.

Mounted in suitable bearings in the main frame 10 is a shaft 12 rapidly rotated by any approved means, and having an eccentric wrist-pin 14.- at its front end. A stud 16 is rigidly fastened in the frame above the shaft and projects forward several inches. A sleeve 18 is rotatably mounted on the stud, and has a downwardly projecting yoke 20, embracing the wrist-pin 14:

by means of any approved bearing device. The yoke has strengthening ribs 22 one of which oscillates against a hardened lug 24, mounted on the frame to keep the sleeve in position on the stud.

The front end of the sleeve carries the head 26, which is mounted on it in some way which facilitates removal, as by a plurality of dowels projecting from one .part into the other. A stud 28 is pinned in the end of the sleeve 18 and has a reduced threaded end projecting forwardly through an oval hole 30 in the head 26. An elliptical washer 32 is held in position on this threaded end by a nut. When the washer is placed with its long axis horizontal, as in Fig. 2, it looks the head 26 on the sleeve 18; w en it i turned into a vertical position, it will pass through the hole 30, permitting the removal of the head 26. Its rear face is cut away segmentally, as shown in Fig. 3, to facilitate its turning exactly The head 26 carries at its lower end the trimming knife 34, which has a cutting edge at each end adapted to trim the right and left edges of a shank, respectively. The oscillation of the sleeve 18 by the shaft 12 and intervening connections causes the knife 34- to oscillate rapidly and to raise a shaving on the shank of a shoe presented to either cutting edge. 2

The head 26 is machined to carry a slide 36, which may be reciprocated up and down by a link 38 having a rearwardly extending boss 41 engaging in a hole in the slide 36. The boss ll has a large hole registering with the stud 28 in order to give access to the washer 32. The slide 36 carries two studs 39 on which are fulcrumed curved levers 40 carrying the right and left chopping knives 42 at their lower ends, and backwardly projecting rotatably adjustable eccentric studs 4A at their upper ends. These studs travel in guide slots 4L6 in a member 48 fixedly mounted on the frame. The oscillation of the plate 26 causes a corresponding movement of the slide 36 and the guide slots l6 are so directed that the underhanging knives 42 are oscillated in paths substantially radial as regards the center of oscillation of the system, these paths being therefore at right angles to the path of the knife 34:, which is circumferential as regards this center. All three knives are adjustably clamped in split dovetail slots as shown, and the chopping knives and the eccentric studs &4 are so adjusted that the knives have the same limiting position of swing as the knife 34, reaching this point, however, alternately. A knife 42 will therefore detach the shaving raised on the sole edge by the knife 34.

The substantial concentricity of the boss 41 and the stud 28 causes the slide 36 and the head 26 to oscillate without relative lit) spring act at d, o e g ge .catch the pawl dog,

imama J order. a a o sil he disadv n age inciden to h v ngthe d tac ing knives. 42 in continuous operation on the sole edge, mechanism is provided for automatically operating the link38 to liftand lower'the slide 36 and with, it the detaching knives which may thus, though in continuous oscillatiombemoved from a path terminating in thesole edge to a path lying entirely separate from the sole edge.

. The h ft 2 ha a m. ngag g a ear 21 .1 Shaf mqun s l the ram ha ng. a S v t gear 56 at s p end; -'Ih e gear bfijfdrives a. secondspiral ge r '5 mo iitedsond conce tri sl eve 60 which carries a. ratchet 62. The gear 58 and; ratchet. 62 aretcontinually rotated freely on a bearing sleeve 63, clamped inthe frame y a. screwIf65. A shaft 64 is rotatably mounted in the sleeve 63;. and carries a pulley-like. .member '66, having a. central web 68. In a hole in thiswebis: mounted the pivotal axis of a pawl arranged to engage the ratchet 62 and having a dog 72 on the other side of the web. The a'awl is the ratchet 62 and will, when so engaged, carry the mem ber' 66 and; the shaft-[6,4 around with. the

ratchet.

I ranged to project intothe'path of rotation of the pawl-dog 72 as shown in Fig. 5, which shows the parts just as the dog strikes the upper rod. .Further turning oh .:the member 66 will force the. pawl 70 out of engagement with; the ratchet 62, whereupon the member 66 Will stop. A friction spring 82 holds itin the position in-which it ceases to revolve.

VVith the parts the positionshown, in

vFig. 1, a rightward movement of the rod 76 will rock the, lever 7 8 on its pivot, pulling the rod 7 4 to the left. This will disengage the pawl. dog. 7 2, whereupon the pawl'70 will engage the moving ratchet 62 and the mem- ,ber 66: .andshaft 64: will be revolved 180 when the projecting end of the rod 7 6 will disengage the pawl from the ratchet, and stop the member 66 in the new position, A release of the rightward pressure on the rod 76 will permit the spring 80 to return the rods to the Fig. 1 position, whereupon the member 66 and shaft 64 will turn 180 and stop as before.

The shaft 6a has on its outer end an cecentric pin, 8ft which is arranged to be at its uppermost point with. the parts as shown in Fig; 1. It will therefore be in its lower most position when the shaft (it stops with the pawl dog in contact with the lower rod 76. A link 86 is hung on the pin 84 and carries a stud 88 engaging a bearing in the upper end of the link 38. A nut 90 on the threaded end of the stud 88 holds the parts in position. Each 180 movement of the shaft 6 1 will move the slide 36 and the knives 42 from one operative path to the other, as above described.

- Right and left bell crank levers 92 are mounted on studs Set pivoted in ears 96 in the main frame. The inwardly projecting arms of these levers form an abutment for the outer extremity of the lower rod 76. Eachlever carries a screw 98 bearing against the frame, for purposes of adjusment to this end. An car 100 is mounted on each side of the frame by means of a screw and slot connection 102, to permit adjustment to the right or left as shown in Fig. 1. Vertical shafts 104, carrying crank arms 106 at their upper ends, are mounted in these cars and carry at their lower ends right and left heel breast gages 112 respectively, so bent as to form crank arms. The crank arms 106 are .each grasped between aset screw 108 andja spring 110 on a bell crank 92. The cranks 92 and 106 are thus relatively adjustable as to angularity and distance without disturbance of their .operative relation. These adjustments constitute novel features of my invention. It has been found that a distance adjustment between the knives and the heel breast gage is necessary, owing. to the great Xf11'11.t;1OI1S in shape and width of the knives themselves and to the variation in the heights of heels. For example, a very thick shank requires wide knives and necessitates placing the gauge 112 to the rear, out of their way, while a very low heel requires that the gauge 112 be placed closer to the front. The adjustment by the screw 102 permits any desired distance adjustment between the knives and the gauge, whilethe adjustment by means of the screw 108 permits lateral adjustment between the knives and the gauge. A rand gage 114 is vertically adjustably mounted on a slide 116, adjustable to the right and left asseen in Fig, 1.

The removal of the nut, 90 and turning of the washer 32 permits the removal of the head 26 and all parts carried by it. for grinding the knives.

In using the machine, the operator presents the shoe in a horizontal position, with the sole toward the machine, and with the crease between the upper and the sole on the rand gage, which will have been so ad justed that the trimming knife 34 will then oscillate along the edge of the shank. The heel being to his right, as shown in the drawing, he will tilt the shoe so thatthe right edge of the knife will trim a shaving on the shank, moving the shoe to the left until the heel breast contacts the right hand gage 112. The heel breast gage can be adjusted to the right or left of the operator by the screw 10S, and can be adjusted toward and from him by the adjustment 102., and these adjustments will have been so made that the heel breast will reach the gage just as theacting edge of the knife 34- reaches the junction oi the heel breast and shank.

The pressure of the heel breast against this gage will rotate the right hand shaft 10% clock-wise in Fig. i and will cause the corresponding bell crank 92 to rotate in the same direction, pressing the rod 76 to the left. This will trip the ratchet mechanism and cause the detaching mechanism to descend from its upper position, as shown in Figs. 1 and 2, to its lower position, where it co-operates with the trimmer 34: to remove the shaving from the shank. As soon as pressure on the gage 112 is relieved by removing the shoe, the springSO restores the rods '74, T6 to the positions shown in Fig. 1, and the detaching mechanism is raised again by the resulting halt rotation of the shaft 64. The operator will then turn the shoe over and repeat the operation on the left edge of the shank.

I have thus provided a machine in which the detaching knives are in operative rela tion to the work only at the time when it is necessary to detach the shaving raised by the trimming knife. Loss of power, unnecessary jarring of the work, and rapid drilling of these knives, with its consequent excessive wear due to grinding are avoided, since the shaving is detached as a whole instead of being cut into small pieces as the operator proceeds. A great deal of the time lost in adjustment is likewise saved, since a cut in the sole edge at the heel breast will not be regarded as a blemish, whereas such cuts along the shank, made by a slightly inaccurately adjusted knife would spoil the shoe.

The detaching mechanism vibrates continuously whether in or out of its operative relation to the work. It has been found that edge trimming machinery is very sensitive to jars and vibrations, and any shock or series of oscillations caused by suddenly setting the detaching mechanism into rapid movement is thus avoided.

The control of the detaching mechanism is brought about automatically without any attention on the part of the operator, who is not obliged to change his position or lose any time in effecting it.

Having described my invention, what I claim as new and desire to secure by United States Letters Patent is:

1. In a machine of the class described, the combination with means for trimming the edge of a shoe sole of continuously operating means for detaching the trimmed material from the sole,.constructed and arranged to be controlled by the movement of the shoe in the machine.

2. In a machine of the class described, the combination with means for trimming the edge of a shoe sole of positively driven means for detaching the trimmed material from the sole, constructed and arranged to be controlled by the movement of the shoe in the machine. i

3. In a machine of the class described, means for trimming the edge of a sole, means for detaching the material trimmed, and power-driven means controlled by the shoe for shift-ing said detaching means from one field of action to another.

4. In a machine of the class described, means for trimming the sole of a shoe, and means for detaching the trimmed material constructed and arranged to be moved automatically into and out of its operative path relative to the sole.

5. In a machine of the class described, means for trimming the sole of a shoe, and positively driven means for detaching the trimmed material normally inoperative as regards the work, and constructed and arranged to be made automatically operative as regards the work when the trimming means reaches a predetennined point on the sole edge.

6. In a machine oi the class described, a knife constructed and arranged to trim along the edge of a shoe sole and mechanism for giving said knife rapid oscillatory movements, a second positively driven knife normally inoperative as regards the work but arranged to cut transversely into the sole edge, and automatically operated mechanism for causing said second knife to become operative as regards the work.

7 In a machine of the class described, means for trimming the sole of a shoe, means for detaching the trimmed material but normally held out of operative relation to the work, mechanism controlled by the shoe for moving said detaching means into said operative relation to the work, and means for operating said detaching means positively in co-operative .relation to said trimming means.

8. In a machine of the class described, means for triming the sole of a shoe, means for detaching the trimmed material, power-driven mechanism for ,moving the detaching means to and from operative relation with the shoe, and means arranged to be actuated by the shoe to control said mechanism.

9.111 a machine of the class described,

means for trimming the sole of a shoe, means mally a path out of operative relation to thelwork and to carry it automatically into such operative relation when the trimming means has reached a predetermined point on the sole edge.

'10. In a machine of the class described,

means for trimming the edge of a shoe sole,

means for detaching the trimmed material from the sole, said latter means being continuously driven, but normally held in inoperative position with relation to. the work, and mechanism actuated by contact with the shoe for placing said means in operative relation to the work. i i

11. In a machineof the class described, means for trimming the edge, of a shoe sole, and continuously driven means for detach ing the trimmed material from the sole, constructed and arranged to remain normally out of operative relation to the work and to be automatically placed in such operative re lation when the trimming means reaches a predetermined point on the shoe-sole,-

12. Ina machine of the, class described, the combinatioiiwith. means for trimming the edge of a shoe sole, of means continuously driven but normally inoperative as regards the work for detaching the trimmed material from the sole, and controlling mechanism for said detaching means arranged to be actuated by contact with the breast of theheel of the shoe being trimmed to cause said detaching means to operate on the shoe.

13. In a machine of the class described, the combination with a knife constructed to trim alongthe edge of a shoe sole in front of and adjacent to the heel breast, and operating.

mechanism for said .k nife,.of continuously driven means normally inoperative with relation to the work but arranged to become operative relative to the work automatically upon the arrival of the trimming knife in alinement with the heel breast to sever the trimmed material from the sole substantially in the plane of the heel breast.

14. In a machine of the class described, means for trimming the sole of a shoe, means for detaching the trimmed material, driven mechanism arranged to operate said detaching means, and. automatic means arranged to move said detaching means, independently of said driven mechanism, to and from operative relation to the work 15. In a machine of the class described, means for trimming the edge of a shoe sole, means for detaching the trimmed material from the sole, and driving mechanism for the latter means having positive connection therewith to cause operating movement, but loos connectiontherewith to enable said means to be moved to and from operative relation to the work, and means operated by the shoe for controllling the function ing of said means. I H V j 16. Iii a machine of the class described,

means for trinnning the edge of a shoesole, means for detachingthe material trimmed and an oscillatory drive member for said detaching means relative to the center of oscillation. of which said detaching means is movable, and means actuated by the shoe for effecting such movement. p

17. In a machine of the class described, means for trimming the sole of a shoe, means for detaching the material trimmed from the right side of the sole, means for detaching the material trimmed fromv the left side of the sole, and a member controlled by the movement in the'machine of the shoe being operated upon and carrying said two detaching means and constructed and arranged to control their relation to the work.

18. In a machine of the class described, means for trimmingthe edgeof a shoe sole means for detaching the material trimmed from the right and left sides of the sole, and drive mechanism for said latter means, having connection therewith constructed and arranged to permitmovement of said. detaching means as a whole toward and away from the work, and mechanism co-acting with the shoe for causing such movement when the trimming means reaches a predetermined point on the sole edge. v x

19. In a machine of the class described, means for trimming a shoe sole, an oscillating drive member, a slide on said member carrying means for detaching the trimmed material, and automatic means for moving said slide relative to said member during the trimming of a sole for controlling the detaching means.

20. In a machine of the class described,..

the combination with a knife constructed to trim along the edge of a shoe sole in front of and adjacent to the heel breast, and mech-- anism for giving said knife rapid to and fro movements, of a second continuously moving knife normally out of operative relation to the work but arranged to cut transversely into the sole edge substantially in line with the heel breast, and mechanism acting automatically upon the movement of the breast of the heel, into alinement with said second knife to set the latter knife into operation upon the work.

21. In a machine of the class described, the combination with a knife constructed to trim along the edge of a shoe sole in front of and adjacent to the heel breast, and mechanism for operating said knife, of a second knife arranged to cut transversely into the sole edge substantially in line with the heel breast, shoe positioning means arranged to engage the breast of the heel and positive operating mechanism for said transversely cutting knife controlled by said shoe positioning means. I l

22. In a machine of the class described, the combination with a knife constructed to trim along the edge of a shoe solein front of and adjacent to the heel breast, and mechanism for operating said knife, of a second knife arranged to cut transversely into the sole edge substantially in line with the heel breast, a stop arranged to arrest the movement of the shoe being trimmed in position for the operation of said transversely cutting knife, positive operating mechanism for the latter knife and connections between said stop and said operating mechanism for normally preventing said second knife from operating, on the work but acting upon the engagement of the shoe with said stop to cause said second knife to cut into the edge of the shoe sole.

23. In a'machine of the class described, the combination with means for trimming the edge of a shoe sole, of positively driven means normally inoperative as regards the work for detaching the trimmed material from the sole, and controlling mechanism for said detaching means arranged to be actuated by the shoe to set the detaching means into operation, said controlling mechanism being adjustable to vary the point at which its operation is begun.

24:. In a machine of the class described, sole trimming means, means for detaching the material trimmed constructed and ,arranged to operate in a plurality of positions,

and means actuated by the movement of the.

shoe as advanced to treat successive portions, for interchanging said operating positions.

25. In a machine of the class described, sole trimming means. means for detaching the material trimmed having an operative position adjacent the sole edge and another position removed fromthe sole edge, means for shifting said detaching means from one position to the other, and a power driven clutch arranged toengage the shifting means when the trimming means has reached a predetermined point on the sole edge.

26. In a machine of the class described, sole trimming means, means for detaching the material trimmed having an operative and an inoperative position relative to the work, means for shifting the trimming means from one position tothe other comprising a clutch and stop mechanism controlled by the movement of the shoe in the machine.

27. In a machine of the class described,

sole trimming means, means for detaching the material trimmed having an operative and an inoperative position relative to the work, means for shifting the trimming means from one position to the other, mechanism for actuating the shifting means, and

"a gage arranged to be contacted by the shoe when the trimming means reaches a predetermined point on the sole, and connected with said mechanism for controlling its operation. I 1

28. In a machine of the class described,

arranged to shift said detaching means into its operative position when the shoe reaches a predetermined position and to shift said detaching means to its normal inoperative position only when the shoe isremoved from said position.

29. In a machine of the class described, sole trimming means, means for detaching the material trimmed having an operative and an inoperative position relative to the work and being normally in the inoperative position, mechanism constructed and arranged to shift said detaching means from one position to the other, a gage for engage ment with the shoe, and connections between the gage and the shifting mechanism where by said mechanism is actuated to shift the detaching means from inoperative to opera tive position on contact between the shoe and the gage and to shift said detaching means back to inoperative position when such contact is discontinued.

30. In a machine of the class described, sole trimming means, means for detaching the material trimmed having a plurality of;

positions relative to the work, mechanism constructed and arranged to shift saiddetaching means from one position to another, driving mechanism for operating said shifting means, a member constructed and arranged for interposition l11 "SZtlCl driving mechanism to discontinue its action on the shifting means and to permit, on its withdrawal, the resumed action of the driving mechanism on the shifting means, and means operated by the shoe for controlling said member.

31. In a machine of the class described, sole trin'iming means, means for detaching the material trimmed having an operative and an inoperative position relative to the work, mechanism constructed and arranged to shift said detaching means from one position to the other, driving mechanism for operating said shifting means, two members 7 connected for simultaneous movements in opposite directions, constructed and arranged on movement in one direction to terminate the operation of said shifting means by said driving mechanism, at points corresponding respectively to said two positions of the detaching means, and on reversed movement to permit reengagement of said driving mechanism and shifting means, and

means operated by the shoe for controlling said members.

32. In a machine of the class described, sole trimming means, means for detaching the material trimmed having an operative and an inoperative position relative to the work, mechanism constructed and arranged to shift said detaching means from one position to the other, disconnectible driving mechanism arranged to operate said shifting means so ,as' to shift said detaching means back and forth from one of said positions to the other, and means controlled by the'work for controlling said disconnectible driving mechanism;

33. In a machine of the class described, sole trimming means, means for detaching the material trimmed having an operative and an inoperative position relative to the work, mechanism constructed and arranged to shift said detaching means from one position to the other, driving mechanism for operating said shifting means, two members connected forsimultaneous movements of opposite significance, constructed and arranged on movement in one sense to terminate and on movement in the other sense to restore the connection between the driving mechanism and shifting means, at points corresponding respectively to said two positions of the detaching means, said memhers being arranged to remain normally in the position corresponding to the inoperative position of the detaching means, and mechanism operated by the shoe for interchanging the positions of said members whereby the driving mechanism will actuate the shifting means to move said detaching means into operative position With respect to the work. said members resuming their normal positions when the shoe is removed from the machine, whereby the detaching means is returned to its inoperative position.

34. In a machine of the class described, a tool movable to and from' a field of operation, driven means for operating said tool, disconnectible driven means for shifting said tool to and from said field, and mechanism arranged to control said disconnectible means so as to maintain the tool normally out of said field, said controlling mech anism being controllable by the work to initiate shifting of the tool by said disconnectible means.

35. In a machine of the class described, a tool movable to and from a field of operation, driven means for operating said tool, disconnectible driven means for shifting said tool to and from said field, and mechanism constructed and arranged to control said disconnectible means so as to interrupt the driving connection after each shifting of the tool. said controlling mechanism be ing controllable by the work to initiate the driving connection for shifting the tool both to and from said field.

36. In a machine of the class described. means for trimming the edge of a sole, means for detaching the material trimmed, and means for controlling the detaching means, comprising a gage arranged to be contacted by the shoe whenthe trimming means has reached a predetermined point on the sole, said controlling means having provision for adjustment whereby said gage may be adjusted in a direction substantially perpendicular to the path of the trimming means.

37 Ina machine of the class described, means for trimming the edge of a sole,

means for detaching the material trimmed,

and means for controlling the detaching means comprising a crank arm, a shaft carrying a gage and a second crank arm enthe first named crank arm with prorision for angular and distance adjustmcnt between the pivotal axes of said crank arms, whereby said gage may be adjusted to be operated by the shoe to actuate the controlling means when the trimming means has reached a predetermined point on the sole edge.

38. In a machine of the class described, means for trimming the sole of a shoe, means actuated positively for detaching the trimmed material, said detaching means having a field of action for operating on the work and being movable to and from said field, mechanism arranged to move said detaching means to and from said field of action, and means arranged to control said mechanism and arranged to be actuated for that purpose by a shoe moving in the field of operation of the machine.

39. In a machine of the class described, means arranged to trim the edge of the shoesole, means arranged to detach the trimmed material, said detaching means including a work-engaging tool arranged to be movable in the field of its detaching function and to he movable to and from said field, driven means arranged to shift said tool to and from said field, driven means arranged to impart detaching motion to said tool independently of the shifting of the tool as aforesaid, and means arranged to control said shifting means.

40. In a machine of the class described, means arranged to trim the edge of the shoe sole, means arranged to detach the trimmed material, said detaching means including a work-engaging tool and driven elements arranged to vibrate the tool, said tool being movable from one range of vibratory motion to another without stopping, driven means arranged to shift said tool from one range of vibratory motion to another, and means arranged to control said shifting means.

41. In a machine of the class described, means for trimming the sole of a shoe, means for detaching the trimmed material, said detaching means being movable to and from a field of operation, disconnectible driven means for shifting said detaching means to and from said field, and mechanism controlled by the Work so as to initiate operation of said shifting means and arranged to stop such operation after each shifting of the detaching means.

42. In a machine of the class described, means for trimming the sole of a shoe, means for detaching the trimmed material, disconnectible power-driven means arranged to shift said detaching means automatically to and from a field of operatiom'and controlling means arranged normally to keep said shifting means disconnected from its source of power, said controlling means being arranged to be displaced by a shoe undergoing operation to permit said shifting means to be operatively connected to its source of power.

43. A machine for operating on shoes, comprising a Working tool, disconnectible power-driven means for shifting said tool to difi'erent localities, means controlled by the work for controlling said disconnectible shifting means, and power-driven means for actuating said tool in each of said localities.

4:41;. A machine for operating on shoes,

comprising a working tool, power-driven means controlled by the Work for shifting said tool to various localities, and powerdriven means for actuating said tool in each oi said localities.

-45. A machine for operating on shoes, comprising a Working tool arranged to be shifted to various localities, mechanism for returning said tool normally to one of said localities, said mechanism being powerdriven but controllable by the Work to shift said tool away from the one locality specified, and power-driven means for imparting 'to said tool operating movement'other than the movement by which it is shifted to its various localities.

46. A machine for operating on shoes,

comprising a Working tool arranged to be shifted to different localities, power-driven mechanism for shifting said tool to predetermined stations successively, means by which the work controls said shifting mechanism, and power-driven mechanism for actuating said tool at each of said stations.

In testimony whereof I have signed my name to this specification.

FREDERICK H. PERRY.

Certificate of Correction.

It is hereby certified that in Letters Patent No. 1,534,076, granted April 21, 1925, upon the application of Frederick H. Perry, of Beverly, Massachusetts, for an improvement in Jointing Machines, an error appears in the printed specification requiring correction as follows: Page 5, line 64, claim 15, after the Word said insert the Word detaching; and that the said Letters Patent should be read With this correction therein that the same may conform With the record of the case in the Patent Oflice.

Signed and sealed this 1st day of September, A. D. 1925.

[SEAL] KARL FENNING,

Acting Uommtssz'omr of Patents. 

